Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6803117 | Magnetic recording medium with an exchange layer structure including a CoCrPtB ferromagnetic layer | Hideyuki Akimoto, Kenji Sato, Masaya Suzuki, Akira Kikuchi, Tohru Horie +2 more | 2004-10-12 |
| 6753101 | Magnetic recording medium, magnetic storage apparatus, recording method and method of producing magnetic recording medium | E. Noel Abarra, Iwao Okamoto, Yoshifumi Mizoshita | 2004-06-22 |
| 6740383 | Magnetic recording medium possessing a ratio of Hc(perpendicular) to Hc(horizontal) that is not more than 0.22 and magnetic recording disk device | Masayoshi Shinohara, Kenji Sato, Iwao Okamoto, Yasuji Ikeda, Kiyoshi Yamaguchi | 2004-05-25 |
| 6699601 | Magnetic recording medium, method of producing the medium, and magnetic disk apparatus | Kenji Sato | 2004-03-02 |
| 6689496 | Magnetic recording medium, method of producing magnetic recording medium, and magnetic storage apparatus | Haruhiro KOMURA, Hisashi Umeda, Iwao Okamoto | 2004-02-10 |